diff --git a/public/javascripts/resizeable_table.js b/public/javascripts/resizeable_table.js
index 1f84d4471..0b46f9a35 100644
--- a/public/javascripts/resizeable_table.js
+++ b/public/javascripts/resizeable_table.js
@@ -38,7 +38,7 @@
                if (mousedown == true){
                    var width = (tdWidth + (evt.screenX - screenXStart)) - p1 + "px";//计算后的新的宽度
                    var width2 = (tdWidth2 - (evt.screenX - screenXStart)) - p2 + "px";
-                   if (parseInt(width)<0  || parseInt(width2)<0 || tdWidth > totalWidth || tdWidth2 > totalWidth){
+                   if (parseInt(width)<5  || parseInt(width2)<5 || tdWidth > totalWidth || tdWidth2 > totalWidth){
                        tartgetTd = null;
                        resizeable = false;
                        mousedown = false;